题目

Do you know growing pains（疼痛）? Growing pains aren’t a disease. Sometimes you don’t have to see a doctor. Usually children can get them between the age of 3 and 5 or 8 and 12. When children are over fifteen, most of them don’t get growing pains. Children often get growing pains in their legs. They often start before bedtime and sometimes in the middle of the night. But they go away by the morning. Doctors don’t know why. They think when children run, climb or jump a lot during the day, they may have pains in their legs at night.Parents can help children feel better by buying som如图所示，甲、乙之间的隔板K和活塞F都可左右移动，甲中充入2 mol SO2和1 mol O2，乙中充入2 mol SO3和1 mol He，此时K停在0处。在一定条件下发生可逆反应：2SO2(g)＋O2(g)2SO3(g)，反应达到平衡后，再恢复至原温度。回答下列问题：达到平衡后隔板K是否可能处于0刻度________(填“可能”或“不可能”)。若K最终停留在0刻度左侧a处，则a一定小于________。（2）若平衡时，K最终停留在左侧刻度1处，则甲中SO3的物质的量为________mol，乙中SO3的转化率________50%(填“>”、“<”或“＝”)，活塞F最终停留在右侧刻度________处(填下列序号：①<6　②>6　③＝6)。（3）若一开始就将K、F固定，其他条件均不变，则平衡时，甲、乙中SO3的物质的量分数是甲________乙(填“>”、“<”或“＝”)；测得甲中SO2的转化率为w%，则乙中SO3的转化率等于________。（4）平衡后将甲容器的混合气的1.0%通入足量Ba(NO3)2溶液，生成的BaSO4质量为________克。